My next caravan although having the name international in its title is far from it. Noseweight is so critical that they have reduced the size of the locker to stop you putting heavier/larger bottles in, it`s tiny, bp gaslight come as standard. Fine until you want to tour abroad. Gaslow have a perfect system but are too heavy, Worthington refillable lpg cylinders are fine but to date have failed to reply to my 6 emails asking for u.k retailers and Ragasco who make a refillable composite cylinder ,the most suitable of all (supplier to BP GASLIGHT) Have given full control of its marketing to BP ie gaslight, who surprise surprise do not market it as refillable and have dropped the middle size (7.5KG)